Discussion
The vibration galvanometer is suitable as a bridge detector because it
Answer: C
Its moving system is mechanically resonant at the supply frequency, so it answers strongly to the fundamental and hardly at all to harmonics or to noise at other frequencies. That selectivity gives a sharp null, but it also confines the instrument to power and low audio frequencies.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development